Solar Eclipse Glasses (Pack of 50) CE & ISO Certified Pack of 50 solar filter observation glasses. Suitable for naked eye observation of solar eclipses, large sunspots, Venus/Mercury transists without a telescope. The sun will appear in a natural orange color when viewed through this filter. Black polymer is the most common filtering material for observing the sun safely. These viewers are a quality product of Thousand Oaks Optical, Arizona, USA. A manufacturer of safe solar filters for over 30 years.